Key Takeaways
- Roulette was invented in the 18th century by French mathematician Blaise Pascal while attempting to create a perpetual motion machine
- The first roulette wheel with a single zero was introduced in 1842 by François and Louis Blanc in Monte Carlo to reduce the house edge
- In 1796, the first roulette wheels appeared in Paris casinos, featuring both single and double zero pockets
- European roulette wheels have 37 pockets numbered 0-36
- American roulette wheels feature 38 pockets with an additional 00, increasing house edge
- The roulette table layout mirrors the wheel in a single zero version but omits 00 in European
- European Roulette house edge is 2.70% on all bets except five-number bet
- American Roulette house edge averages 5.26% due to 0 and 00
- Straight-up bet probability in European roulette is 1/37 or 2.7027%, payout 35:1
- Martingale system doubles bets after loss, but table limits cap it at 7-8 steps
- D'Alembert increases bet by 1 unit after loss, decreases after win, lower risk than Martingale
- Fibonacci betting follows sequence 1,1,2,3,5,8... after losses
- 24% of roulette spins result in red outcomes in European roulette over long term
- Global online roulette market valued at $7.2 billion in 2022, projected to $12.5B by 2030
- Las Vegas roulette tables generate $1.2 billion annually in gross gaming revenue
Roulette has evolved from a French 18th-century invention into a globally popular casino game.
Economics
- 24% of roulette spins result in red outcomes in European roulette over long term
- Global online roulette market valued at $7.2 billion in 2022, projected to $12.5B by 2030
- Las Vegas roulette tables generate $1.2 billion annually in gross gaming revenue
- Average roulette player loses 2.7% of wagered amount per spin in European
- 65% of casino floor space in Monte Carlo dedicated to roulette tables historically
- Online roulette RNG audited to 99.9% randomness by eCOGRA
- Macau roulette revenue $500M yearly pre-COVID, 10% of table games
- Average session length 45 minutes, 60 spins per player
- 40% of high rollers prefer roulette over blackjack
- Global roulette software market $1.5B in 2023
- UK players wager £2.5B yearly on roulette online
- Average win per spin for casino $0.27 on $10 European bet
- 25% of table game revenue from roulette in Europe
Economics Interpretation
History
- Roulette was invented in the 18th century by French mathematician Blaise Pascal while attempting to create a perpetual motion machine
- The first roulette wheel with a single zero was introduced in 1842 by François and Louis Blanc in Monte Carlo to reduce the house edge
- In 1796, the first roulette wheels appeared in Paris casinos, featuring both single and double zero pockets
- Roulette spread to the United States in the early 19th century via French immigrants, leading to the addition of a double zero by American casinos
- The Blanc brothers' single-zero roulette became legal in Monte Carlo in 1861 after gambling was banned in Germany
- By 1885, roulette was banned in Germany, causing the game to flourish in Monte Carlo's casino
- In the 1920s, roulette gained popularity in the US during Prohibition as an underground casino game
- The first electronic roulette machines appeared in the 1980s, revolutionizing land-based casino play
- Online roulette launched in 1994 with the opening of the first online casino by Microgaming
- In 2004, the UK Gambling Commission regulated online roulette, boosting its legitimacy
- Roulette originated from Biribi, an Italian game in the 1700s with 70 numbers
- In 1833, roulette was outlawed in France but persisted underground
- The Monte Carlo Casino opened in 1863, making roulette its flagship game
- American double-zero roulette standardized in New Orleans in 1800s
- Roulette banned in UK until 1960s Gambling Act legalized casinos
- First RNG-based online roulette certified in 1996 by Isle of Man
- Live dealer roulette streamed from Latvia studios since 2006 by Evolution
- In 2019, VR roulette launched by MGM for immersive play
- Roulette was played in ancient China with similar spinning top games around 1650 BC
- 1717 first documented roulette reference in Paris novel "La Roulette, ou le Jour"
- 1843 Homburg casino in Germany popularized Blancs' single zero wheel
- 1910 roulette banned in Monte Carlo briefly during scandal
- 1931 Nevada legalization brought roulette to Las Vegas Strip
- 1976 New Jersey legalized casino roulette post-Atlantic City
- 1994 Antigua licenses first online roulette sites
History Interpretation
Odds
- European Roulette house edge is 2.70% on all bets except five-number bet
- American Roulette house edge averages 5.26% due to 0 and 00
- Straight-up bet probability in European roulette is 1/37 or 2.7027%, payout 35:1
- Red/Black bet in European has 18/37 ≈ 48.65% chance, house edge 2.70%
- Five-number bet in American roulette has 5/38 ≈ 13.16% probability, house edge 7.89%
- Column bet covers 12 numbers, 12/37 ≈ 32.43% in European, payout 2:1
- Dozen bet probability 12/37 ≈ 32.43%, same as column
- Street bet (three numbers) has 3/37 ≈ 8.11% chance in European, payout 11:1
- Split bet probability 2/37 ≈ 5.405% , payout 17:1
- Corner bet (four numbers) 4/37 ≈ 10.81%, payout 8:1
- Probability of zero hitting in 100 spins European: approx 2.70 times
- Expected value for straight-up bet: -1/37 ≈ -0.027 per unit
- Even-money bet RTP 97.30% in European (100% - 2.70%)
- Top line bet (0-00-1-2-3) RTP 92.11% in American
- Six-line bet 6/37 ≈ 16.22% probability
- Trio bet (three numbers including zero) 3/37, payout 11:1 French
- Expected spins to hit specific number: 37 in European
- Variance for red/black bets high due to streaks up to 10+ same color
- House edge on five-number bet highest at 7.89% American
- Probability of 10 consecutive reds: (18/37)^10 ≈ 0.00085 or 1 in 1176 spins
- Long-term, 48.6486% of spins land on red in European
- Break-even point for Martingale requires infinite bankroll theoretically
- Six-line RTP 97.30% same as even money European
- Expected loss per hour at $10/spin: $16.20 European even bets
- Binomial distribution models streak probabilities accurately
- Law of large numbers converges to true odds after 1000+ spins
- Kelly bet size for 2.7% edge hypothetical: 0.5% of bankroll
Odds Interpretation
Rules
- European roulette wheels have 37 pockets numbered 0-36
- American roulette wheels feature 38 pockets with an additional 00, increasing house edge
- The roulette table layout mirrors the wheel in a single zero version but omits 00 in European
- En prison rule in French roulette returns half the even-money bets if zero hits
- La Partage rule halves losses on even-money bets on zero in some European variants
- Inside bets include straight-up (35:1 payout), split (17:1), street (11:1), corner (8:1), six-line (5:1)
- Outside bets offer even money (red/black, odd/even, high/low 1-18/19-36)
- Minimum and maximum bets vary; typically $1 min straight-up, $5k max on tables
- The croupier spins the wheel counterclockwise and ball clockwise
- No more bets called when ball loses momentum in the wheel's track
- Wheel diameter in standard European roulette is 32 inches (81 cm)
- Ball sizes range from 18mm to 22mm in professional wheels
- Announced bets include Voisins du Zero (17 numbers), Tiers (12), Orphelins (8)
- Jeu Zero covers 7 numbers around zero with 3 chips
- Final bets denote last two digits, e.g., 5-9 for numbers ending 5 or 9
- Neighbors bet covers a number plus adjacent 4 on both sides (9 numbers)
- Chips are colored per player to distinguish bets on shared layout
- Basket bet in American covers 0,00,1,2,3 at 6:1 payout
- Wheel check every 1000 spins for bias in regulated casinos
- Racetrack betting layout shows wheel order for call bets
- Neighbours du zero announced bet 17 numbers, 9 chips coverage
- Tiers du cylindre covers 12 numbers opposite zero, 6 chips
- Orphelins a Cheval 8 numbers in two splits + one straight, 5 chips
- Finales en Plein all numbers ending same digit, e.g., 7 chips for 7,17,27
- Snake bet covers 1,5,9,12,14,16,19,23,27,30,32,34 (12 nums)
Rules Interpretation
Strategies
- Martingale system doubles bets after loss, but table limits cap it at 7-8 steps
- D'Alembert increases bet by 1 unit after loss, decreases after win, lower risk than Martingale
- Fibonacci betting follows sequence 1,1,2,3,5,8... after losses
- James Bond strategy bets 14 on high, 5 on six line 13-18, 1 on zero, covers 25/37
- Labouchere (cancellation) crosses off numbers after wins, adds after losses
- Paroli (reverse Martingale) doubles after wins, positive progression
- Andrucci system tracks hot numbers for straight-up bets, based on physics myth
- Oscar's Grind increases by 1 after win covering prior loss +1 profit
- Parlay system pyramids wins, but 50% fail rate per cycle
- Pivot system bets last dozen hit after 35 spins tracking
- Romanovsky covers two dozens + two splits, 24/37 coverage
- 1-3-2-6 progression for even bets, max 12 units risk
- Flat betting maintains constant wager regardless of outcomes
- Sector targeting bets wheel sectors based on physical biases
- Biased wheel exploitation found 1-2% edges in old wheels pre-1990s
- Kelly criterion sizes bets at edge/variance fraction for roulette
- Reverse Labouchere profits target sum of line
- Hollandish progression 3-step cycle for even bets
- Parlay stops after 3 wins, restarts, 7-unit profit potential
- Contra D'Alembert decreases after loss, increases after win
- Tier et Tout covers full wheel minus 5 neighbors
- Constant proportion betting scales with bankroll
- Visual prediction via dealer signature in biased spins
Strategies Interpretation
Variations
- French roulette variant with La Partage reduces house edge to 1.35% on even bets
- Mini roulette uses 13 pockets (0-12), house edge 3.85% on even bets
- Multi-wheel roulette allows betting on up to 8 wheels simultaneously
- Lightning Roulette by Evolution adds multipliers up to 500x on straight-ups
- Double Ball Roulette uses two balls, payouts up to 1200:1
- Pinball Roulette combines digital pinball with roulette wheel outcomes
- Triple zero roulette introduced 2016 by Golden Nugget, house edge 7.69%
- Slingshot roulette uses automated wheel with no croupier spin
- Immersive Roulette live HD with 200x slow-mo replays
- Speed Roulette live deals 24s per game vs 45s standard
- American Roulette Live with 5-camera setup
- Grand Roulette French variant with authentic Paris studio
- No More Bets roulette electronic with 60s cycles
- Quantum Roulette with 1000x-500x multipliers random
- Auto Roulette Studio no dealer, 80 games/hour
- Prestige Roulette live French with chat
- First Person Lightning Roulette RNG version
- Sette e Mezzo roulette Italian variant with cards
Variations Interpretation
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